The predatory golfer had been ­married just nine months when he seduced 26-year-old model Jamie, [pictured], at a Las Vegas party.

Over the next 18 months they met for sex in his California pad surrounded by wedding ­pictures of shameless Woods and his new bride.

The revelation comes as sources in Vegas, where Woods lived a parallel life of sex and sleaze in complete contrast to his Mr Clean public image, said the golfer was a sex addict who relentlessly pursued women.

Jamie is the fourth mistress named as having an affair with him, with sources suggesting the disgraced golf icon – who traded on his wholesome image to coin in millions in sponsorship deals every year – may have had flings with at least four ­others.

Her relationship with Woods, 33, began when she was at a party at the exclusive Bellagio Hotel in Vegas. He sent across a messenger to ask her to join him and his entourage at his VIP table.

Flattered by Woods’ attentions, she ended up going back to his $5,000-a-night suite at the MGM Grand Mansion hotel, where, she later told friends, they had passionate sex.

And while Woods was betraying Elin – who was living in their main home in ­Florida 2,000 miles away – Jamie herself was ­cheating on her fiancé, ­businessman Derek Schmidt.

Derek, 28, a golf fan who used to idolise Woods, said: “I was a massive Tiger fan. I had Tiger Woods memorabilia all over my house and even collected Tiger Woods videos.

“On the night Jamie met him for the first time, I had just bought the new Tiger Woods computer game. The following morning she told me she had met Tiger Woods and he gave her his number – and like an idiot I got really excited about it.

“I even asked her if she could call him so I could get my computer game signed.

“I knew Tiger had come on to her and asked for her number. I knew that he called her whenever he came to Las Vegas.

But she insisted that nothing was going on.”

Derek said Jamie first met Woods, now 33, when she was doing promotional work at the Bellagio in July 2005.

Woods and Elin had wed in October 2004.

Derek said: “She told me she got called over by a ­bouncer who said someone ­important wanted to meet her in the VIP room.

“She said she did not know it was Tiger Woods until she was brought to his table. He ­immediately started ­hitting on her and telling her she was ­beautiful. She told me he asked for her number and gave her his.

“I was surprised because I knew he was married and I didn’t think he was that type of guy. But I trusted Jamie. We had been engaged for over a year then – having first started dating in 2002 – and were head over heels in love.

“She showed me Tiger’s number and we both called it, putting her mobile on speaker phone. I still ­remember his answer machine message. It said, ‘You’ve called the right person at the wrong time. Please leave a ­message’.

“I thought that was pretty cool. I put his number in my phone and took it to work to show my ­colleagues. I played them all the same answer phone message. I had no idea my fiancée had slept with him the previous night. Now I feel like a total idiot.”

Derek said that over the following months Jamie began making regular trips to ­California to meet Woods.

He said: “It was hard to keep track of what she was doing as she always had the excuse that she needed to travel for her work.

“She was staying out late at night and travelling a great deal.”

He said it was only after he split with her in 2007 because of her partying and vanity that he found out about Woods.

“Now, I know the truth, it makes me ­really mad.”

Woods has also reportedly had flings with cocktail waitress Jamiee Grubbs, 24, New York socialite Rachel Uchitel – believed to have been paid $1million to keep silent about Woods – and Vegas club worker ­Kalika Moquin, 27

Other women he has been linked to ­include a “trailer trash” neighbour in ­Florida and a “sex hungry” wealthy woman.

Derek, who is now engaged to another woman, said: “I think Tiger is a great ­competitor on the golf course, but away from it he is a horrible person.

“He should have more respect for himself and his family. I am certainly not a fan of his any more.”